Hundreds of Colorado high school students have walked out of class in the past two weeks to protest proposed changes to the Advanced Placement history curriculum.

The firestorm of protest was sparked by a resolution in August from Jefferson County school board member Julie Williams. When she heard that conservatives across the country were upset about the new AP history curriculum, she proposed a committee to review the district's courses.

Tomorrow in Colorado, voters will decide on an ambitious ballot measure that would overhaul the state's public education system. It could become the first state to combine an income tax hike with education reforms all in one proposal. From Colorado Public Radio, here's Jenny Brundin.

School lunch is often synonymous with loud noise. Studies have shown the decibel level in some cafeterias is as high as a lawn mower.

Every so often, though, students at Alice Terry Elementary School, southwest of Denver, are asked not to make any noise.

When the music teacher told students here they'd occasionally have a "silent" lunch break, this was kindergartner Alyssa Norquette's reaction: "Why do we need a silent lunch? Is it because we're too loud or something?"